#include<fstream>
using namespace std;
ifstream fin("royfloyd.in");
ofstream fout("royfloyd.out");
const int maxx=100000;
int a[101][101],k,n,m,p[101];
void citire()
{
	int i,j,x;
	fin>>n>>m;
	for(i=1;i<=n;i++)
		for(j=i+1;j<=n;j++)
			a[i][j]=a[j][i]=maxx;
	for(x=1;x<=m;x++) 
	{  fin>>i>>j;
	   a[i][j]=1;
	   a[j][i]=1;
	}
}

void rf()
{
	int i,j,k;
	for(k=1;k<=n;k++)
	  for(i=1;i<=n;i++)
	    for(j=1;j<=n;j++)
		if(i!=j)
		  if(a[i][j]>a[i][k]+a[k][j])   a[i][j]=a[i][k]+a[k][j]; //daca dist (i , k) +dist (k,j) < dist (i, j) 
}

void afis()
{
	int i,j;
	for(i=1;i<=n;i++)
	{
		for(j=1;j<=n;j++) 
			if(a[i][j]!=maxx) fout<<a[i][j]<<" ";
		    else fout<<0<<" ";
		fout<<"\n";	
	}
}

int main()
{
	citire();	
	rf();
	afis();
	fin.close();
	fout.close();
	return 0;
}